Research on Collision of Metro Comprehensive Pipeline

2012 ◽  
Vol 594-597 ◽  
pp. 1226-1229
Author(s):  
Qin Zhao ◽  
Guo Liang Bai ◽  
Xin Hong Hei ◽  
Peng Fei Zhang
Keyword(s):  
Design Process ◽  
Three Dimensional ◽  
Urban Rail Transit ◽  
Subway Station ◽  
Rail Transit ◽  
Urban Rail ◽  
Pipeline Design ◽  
The City ◽  
Huge Variety

As an important urban rail transit, the metro has become one of the standards to measure whether the city belongs to modern internationalized destinations or not. Though the space of subway station is relatively small, the metro comprehensive pipeline is an important part of the subway station and includes a huge variety and quantity. During the design process of metro comprehensive pipelines, pipeline collision happens frequently. On Three-Dimensional design platform based on BIM technology, pipeline design has already been mature. This paper puts forward adjustment algorithms about metro comprehensive pipeline collision and they are both flexible and easy to realize and adapt to any Three-Dimensional platform based on BIM technology

Research on Calculation Methods of Urban Rail Transit Station Ticket Gates Load Degree

2013 ◽  
Vol 330 ◽  
pp. 569-573
Author(s):  
Chen Chen Zhang ◽  
Xu Zhang ◽  
Yan Hui Wang ◽  
Ling Xi Zhu
Keyword(s):  
Urban Rail Transit ◽  
The Other ◽  
Subway Station ◽  
Rail Transit ◽  
Calculation Methods ◽  
Passenger Flow ◽  
Urban Rail ◽  
Transit Station

There are many ticket gates at the subway station. The managers are quite careful about the load degree of the ticket gates. This paper studies two different methods to calculate the load degree of the ticket gates. One is based on the station ticket gates group as the research object, and the other one is based on the volume of passenger flow passing in and out of the station as the research object. Then we use the data investigated at Chaoyangmen station in Beijing to test and verify both of the methods. At last, we can get the conclusion that we can get the same result by the two methods, but the method of based on the volume of passenger flow passing in and out of the station is more reasonable.

Evacuation Time of the Facilities in Rail Transit Study and Simulation

2013 ◽  
Vol 409-410 ◽  
pp. 1137-1140 ◽  
Author(s):  
Zhi Juan Li
Keyword(s):  
Time Variation ◽  
Simulation Software ◽  
Urban Rail Transit ◽  
Subway Station ◽  
Rail Transit ◽  
Evacuation Time ◽  
Urban Rail ◽  
Calculation Results ◽  
Simulation Results ◽  
Transit Study

Urban rail transit is one of the important transportation means. Passenger evacuation capacity of subway station is importance for rail operation safety. This article studied the time variation about different numbers of evacuated people under the different stairs width. And it forced on the variation of the evacuation time under different stair widths. By considering the mutual repulsion between pedestrian and wall, and among pedestrians, the article used the anylogic simulation software to simulate and got the evacuation time under different stair-width. When down-stair width is beyond by 3.5m, down-stair-width increasing is unobvious to shorten the evacuation time. Finally, the article explains differences between two results by comparing analysis of simulation results and calculation results.

Study on the Evaluation Principle of Xi'an Urban Rail Transit Network from the Perspective of Historic City Conservation

2011 ◽  
Vol 368-373 ◽  
pp. 3258-3261
Author(s):  
Hai Qing Chang
Keyword(s):  
State Level ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Cultural Resources ◽  
Transit Planning ◽  
Transit Network ◽  
Urban Rail ◽  
Urban Rail Transit Network ◽  
Historic City ◽  
The City

At present, China has entered a rapid developed stage of urban rail transit. As of the end of 2010, China approved the urban rail transit construction in 28 cities, of which 75% of the city is a state-level historic city. In this article, the author researches the Xi’an cultural resources and the experiences of historic city conservation planning of Xi'an, analyzes the Xi'an urban rail transit planning, and expresses the opinion that the historic city should be attached importance to the heritage impact assessment studies of urban rail transit network. Final the author summaries the evaluation principle of Xi'an urban rail transport planning from the perspective of historic city conservation, and hopes that all these experiences can be used by other historic city.

scholarly journals Risk Evaluation Study of Urban Rail Transit Network Based on Entropy-TOPSIS-Coupling Coordination Model

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Fawen Gao ◽  
Zhibin Zhang ◽  
Mengxing Shang
Keyword(s):  
Risk Evaluation ◽  
Social Resources ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Transit Network ◽  
Coordination Model ◽  
Urban Rail ◽  
Risk Situation ◽  
Urban Rail Transit Network ◽  
The City

As one of the core systems of a city, urban rail transit plays a pivotal role in ensuring the safe, rational, and efficient operation of the city. Therefore, it is of great significance to ensure the safe operation of urban rail transit network to improve the operation efficiency and economic level of the city. The prerequisite to ensure the safety of urban rail transit network is whether the risk situation of urban rail transit network can be reasonably and accurately evaluated. In order to evaluate the risk level of urban rail transit network reasonably and accurately, firstly, with full consideration of the characteristics of urban rail transit, the risk evaluation system of urban rail transit network was established in this paper based on the three levels of regional economy, social resources, and rail transit. Secondly, based on the entropy-TOPSIS-coupling coordination model, the single-factor influence and multifactor coupling influence in the index system are calculated and analyzed, respectively; thus the coupling coordination degree of urban rail transit system is obtained, so as to quantitatively evaluate and analyze the risk situation in urban rail transit network. Finally, based on the actual data of Shanghai from 2000 to 2016, the case simulation and analysis are carried out. The results show that the two indicators of regional economy and social resources are more likely to affect the safety state of urban rail transit. At the same time, the safety factor of urban rail transit coupling system is increasing year by year and gradually develops from disorder to order. This is more in line with current urban rail transit condition, demonstrating the rationality and accuracy of the entropy-TOPSIS-coupling coordination model proposed in this study.

Simulation and Analysis for Environment Vibration Induced by Urban Rail Transit with Ground Line

2012 ◽  
Vol 226-228 ◽  
pp. 411-416
Author(s):  
He Nian Zhang ◽  
Qi Yun Sun ◽  
Guang Jun Sun
Keyword(s):  
Three Dimensional ◽  
Measurement Data ◽  
Exciting Force ◽  
Urban Rail Transit ◽  
Propagation Path ◽  
Rail Transit ◽  
Vibration Source ◽  
Finite Element Software ◽  
Urban Rail ◽  
Ground Line

The environment vibration induced by urban rail transit becomes one of the severe environmental hazards and attracted great attention for researcher at home and abroad. Firstly，on the basis of track irregularity theory, an exciting force function of vibration source induced by ground line train is established. Then, the exciting force acts on the three-dimensional models of rail bearing structure and soil propagation path by utilizing the finite element software. The surrounding environment vibration response caused by train operation is simulated and the numerical results are compared and verified by the field measurement data. Furthermore, the parameter effects of train speed and properties of site soil on environment vibration are studied. The researches show that the numerical simulation in the paper can truly reflect the actual environment vibration caused by urban rail transit with ground line.

scholarly journals Analyzing Influencing Factors of Transfer Passenger Flow of Urban Rail Transit: A New Approach Based on Nested Logit Model Considering Transfer Choices

2021 ◽  
Vol 18 (16) ◽  
pp. 8462
Author(s):  
Zhenjun Zhu ◽  
Jun Zeng ◽  
Xiaolin Gong ◽  
Yudong He ◽  
Shucheng Qiu
Keyword(s):  
Influencing Factors ◽  
Urban Rail Transit ◽  
Node Degree ◽  
Nested Logit ◽  
Rail Transit ◽  
City Center ◽  
Passenger Flow ◽  
Urban Rail ◽  
Transfer Stations ◽  
The City

With the continuous improvement of the operation line network of urban rail transit, analyzing influencing factors of transfer passenger flow of urban rail transit is critical to improve the transfer demand analysis of urban rail transit. Using data collected from questionnaires, transfer passenger flow surveys and smart cards, this study proposes an approach base on nested logit passenger flow assignment model considering transfer choice behaviours of passengers. The transfer passenger flow at seven transfer stations in Nanjing is obtained. Subsequently, this study investigates the potential influencing factors of transfer passenger flow, including the node degree, geographic location (located in the city center, urban fringe, suburbs or suburban fringe), economic location (distance from the city center) and transportation locations (if it is close to a transportation hub or in combination with the hub) of rail transit transfer stations. The results indicate that a positive correlation between the transfer passenger flow and the node degrees of transfer stations. However, the relationship between transfer passenger flow and the economic, geographic, and transportation locations of transfer stations is not clear. The finding have reference value for the network design of rail transit transfer stations and transfer facilities, and provide reference for the analysis of passenger flow under network operation.

Research on the Elastic Pricing Theory Based on Ramsey Model

2014 ◽  
Vol 587-589 ◽  
pp. 2124-2127 ◽  
Author(s):  
Lei Zhang ◽  
Shu Yi Liu
Keyword(s):  
Urban Rail Transit ◽  
Rail Transit ◽  
Pricing Policy ◽  
Ramsey Model ◽  
Ticket Pricing ◽  
Traffic Jam ◽  
The Public ◽  
Urban Rail ◽  
Pricing Theory ◽  
The City

Reasonable urban rail transit can not only make urban rail transit an effective way to relieve traffic jam in the city, but also achieve both the public benefit and economic benefit. The elastic pricing model based on the Ramsey model is researched and verified through an example in this paper, which lays a theoretical basis for implementation of the congestion-based pricing policy. Finally, some reasonable proposals for the development of urban rail ticket pricing are put forward.

Research on the Layout of the Integrative Urban Rail Transit Line Station

2013 ◽  
Vol 409-410 ◽  
pp. 1222-1229 ◽  
Author(s):  
Zhen Lv ◽  
Dong He ◽  
Hua Fei Jia ◽  
Cheng Bing Li
Keyword(s):  
Simulated Annealing Algorithm ◽  
Programming Model ◽  
Urban Traffic ◽  
Urban Rail Transit ◽  
Rail Transit ◽  
Total Consumption ◽  
Transit System ◽  
Passenger Rail ◽  
Urban Rail ◽  
The City

Because there are some differences in operation management body and investment body between city railway/suburban railway and other modes of transportation of urban rail transit, reasonable coordination and effective connection cant achieve in various modes of transportation of urban rail transit, resulting in not only wasting national limited traffic resource, but also bringing so much inconvenience to the traveling passengers. Under this background, the author proposes the alternative use mode of building integrative urban passenger rail transit system and their definitions. Then, the bi-level programming model of the integrative passenger rail transit line station layout based on the alternative use mode is established. Whats more, the simulated annealing algorithm is used to solve it. Finally, a numerical example shows that the pattern of multi-point stopping under alternative use mode is beneficial to reduce total consumption of passenger agglomeration and shorten the passenger traveling time, at the same time it is more beneficial to ease the urban traffic pressure (especially the city ground traffic).

Study on Evacuation Facilities Bottleneck in Xizhimen Station with Simulation

2013 ◽  
Vol 706-708 ◽  
pp. 2044-2047
Author(s):  
Xin Zhang ◽  
Jie Xu ◽  
Jian Yuan Guo ◽  
Yang Wang
Keyword(s):  
Service Level ◽  
Urban Rail Transit ◽  
Subway Station ◽  
Rail Transit ◽  
Service Levels ◽  
Urban Rail

Urban Rail Transit (URT) is more and more popular with citizens. Evacuation capability of stations is concerned with their service levels. When emergencies occur, passengers' safety is threatened. 3-line Xizhimen Station is taken with M/G/c/c theory for an example. By analyzing evacuation capability of stairs and passageways, evacuation bottlenecks are found to improve the service level of Xizhimen subway station.

Sign in / Sign up

Export Citation Format

Share Document